Frog is a free and open source OCR software for Linux gnome. It is written in Python and released under MIT License. Using Frog you can extract and copy any text from Video, Website, Image, PDF and QR code. Open Frog and take screenshot of any and convert into text. Currently it supports more than 100 languages, orientation and script detection, math and equation detection and keyboard shortcuts. you can also try textsnatcher app to extract text.
Install Frog on Ubuntu Linux
Frog is available as a flatpak package file from remote flathub repositories. First install flatpak and flathub on your system using below link and restart it after the installation.
How to install flatpak and flathub
After the installation and restart open the terminal command-line application using ctrl+alt+t keys and run below Frog flatpak installation command. It will install the latest version of Frog OCR application on your system.
flatpak install flathub com.github.tenderowl.frog
Now you can open it via below command or via applications menu.
flatpak run com.github.tenderowl.frog
Uninstall Frog OCR application
You can uninstall Frog using below flatpak command.
sudo flatpak uninstall com.github.tenderowl.frog